const createError = require('http-errors');
const multer=require('multer')
const express = require('express');
const path = require('path');
const cookieParser = require('cookie-parser');
const logger = require('morgan');
const cors= require('cors')
const bodyParser=require('body-parser')
const { generateToken,
  verifyToken}=require('./common/secret') 

const db=require('./config/db')

const indexRouter = require('./routes/index');
const usersRouter = require('./routes/users');

const upload=multer()
const app = express();

 

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

// 数据库
app.use(upload.array())
app.use((req,res,next)=>{
  req.db=db
  next()
})
app.use(cors())
app.use(bodyParser.json())
app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: true }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/api',verifyToken,indexRouter);
app.use('/users', usersRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
